【Characteristics】:A white crystalline powder
Identification:According to BP98 USP24 EP97
Assay:84.0%-93.0%
Appearance of the solution:Clear and colourless
Crystallinly:Meets the requirements
Acidity:PH3.0-5.5
Specific Rotation:+135。-+150。
Water:<3.0%-6.0%
Sulfated Ash:<0.5%